Hello everyone, just an update on the resolution to this problem. If your Boxster or any 986 vehicle has died while driving. Self diagnoses is cheapest and usually more efficient. If you heard a grinding it is most likely your IMS bearing. Thankfully for me I have a reliable aftermarket IMS Bearing. If you did not hear a sound when the car died, check fuel pump relay, fuses and wiring.
-Solution. After taking the battery out of the front under the bonnet, taking the sending unit out and taking the fuel pump out. I ran some tests and turns out the fuel pump had gone out. If you had similar issues as I did, I suggest you take out your fuel pump, super simple process. 1. Take out your battery, 2. unscrew the battery pan 3. Take out all fuel hoses to the sending unit. (they may have some pressure built up and spit a little gas.) (IF THE HOSES DO NOT HAVE PRESSURE IT IS VERY LIKELY YOUR FUEL PUMP IS BAD) 4. Take out the sending unit, (Careful for wires that are connecting to the fuel pump. 5. After disconnecting the wires from the sending unit gently take out sending unit and place it somewhere dry and AWAY FROM HEAT OR FLAME AND ESPECIALLY AWAY from dirt. 6 Looking into the gas tank you'll see the fuel pump at the bottom of the tank (wear some gloves) Rotate the fuel pump counter clock wise. Once it clicks out of place slowly remove the fuel pump assembly.
For testing ( First test wiring ) The connector with the yellow and black wire running into the fuel pump, Run positive power to yellow and ground the black, ( BE CAREFUL) If nothing happens take the cap off of the assembly and continue to provide power to positive and negative power to the actual pump. If nothing happens, The sucker is done for.
I spent 270$ for an OEM fuel pump. However, There are cheaper alternatives. I saw some with a year warranty for 40-70$ ( This whole process for me took roughly an hour or so)